Pack Plenty of Protein

When it comes to protein, choose your sources wisely. Cold cuts and deli meats are not good choices, as they are high in nitrates and sodium. Stick to unprocessed sources, such as roasted chicken, smoked salmon, roast beef and soy beans. All can be enjoyed cold and can be eaten without utensils. Stuff them into a Romaine lettuce leaf, and you have an energy-packed food that will keep you functioning at peak performance. Include an ice pack in your lunch box to ensure they stay at the proper temperature while you work. If you require something more substantial, include hearty whole-grain bread or wraps.